Skip to content

Course home

Sign up

2.2 Animal tissues, organs and organ systems

EasyMediumHard
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960
Question 36

Before an operation, a patient's blood is tested. The patient's blood sample and a reference blood sample have the same volume.

Blood sampleRed blood cell concentration (millions per mm³)
Patient's sample3.2
Reference sample5.0

The patient's platelet concentration is 45% of the typical concentration.

a.

Name the protein in red blood cells that binds to oxygen.

[1]
b.

Compare the oxygen-carrying capacity of the two blood samples. Explain your answer.

[2]
c.

Give one reason why the platelet result may be a concern during the operation.

[1]
Markscheme

2.2 Animal tissues, organs and organ systems Questions

  1. GCSE
  2. /Biology
  3. /2.2 Animal tissues, organs and organ systems

304 exam-style questions on AQA GCSE Biology 2.2 Animal tissues, organs and organ systems, covering 2.2.1 The human digestive system, 2.2.2 The heart and blood vessels, 2.2.3 Blood, 2.2.4 Coronary heart disease: a non-communicable disease, 2.2.5 Health issues, 2.2.6 The effect of lifestyle on some non-communicable diseases, and 2.2.7 Cancer. Each one has a worked solution and a mark scheme showing where the marks go.

Question bank